Blend door actuator not working properly

2011 GMC ACADIA
110,000 MILES • 6 CYL • AUTOMATIC
Avatar
DCHEF45
  • MEMBER
  • 1 POST
I have a the vehicle listed above SLT model. the vents won't switch between floor, upper or defrost. Some air comes out of all vents but can't turn any all the way off.
Jan 1, 2019 at 2:49 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,684 POSTS
Hello,

It sounds like you have a mode blend door actuator that is out which is common. Here is a guide to walk you through the steps and the location of the actuator and how to change them in the diagrams below:

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (below). Please let us know what happens.

Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Jan 2, 2019 at 3:36 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle